B2B software development services.

We solve your business problems.

MobileFlutter, iOS and Android →BackendPHP, Python, Go, Kotlin →WebNext.js, Nuxt, SSR →InfrastructureKubernetes, Terraform, CI →

Starting prices

Landing page

One long page with one goal: turn a visitor into a lead. Hero, offer, proof, one button.

from $350 · in 1 week

Business-card site

A few screens that say who you are and how to reach you. Nothing to maintain.

from $450 · in 1 week

E-commerce store

Catalogue, cart and checkout. Payments, stock and orders that actually reconcile.

from $700 · from 2 weeks

Mobile app

iOS and Android from one codebase. Push, payments, offline — the parts users feel.

from $2000 · from 4 weeks

Selected work

Nine projects, and what we were responsible for on each.

What we build

Mobile apps

One codebase, two app stores. Native where the app earns it.

Flutter · Dart · Swift · Kotlin

Backend & APIs

The part nobody sees. Schema, endpoints, deploys.

PHP/Laravel · Python/FastAPI · Kotlin/Ktor · Go · gRPC · Kafka

Web frontends

Rendered on the server. Fast on arrival.

Next.js · Nuxt · React · Vue · TypeScript

Infrastructure

Cloud or your own metal. Same pipeline either way.

Kubernetes · Terraform · Ansible · Docker · GitLab CI · ELK

Data & search

Storage that fits the query. Search that answers it.

PostgreSQL · ClickHouse · MongoDB · Elasticsearch · Meilisearch

Architecture

Decide it once, on paper. Deciding it twice costs code.

System design · DDD · CQRS · high-load · migration plans

Technical audit & rescue

We read the code you have. Or take it over from whoever left.

Code review · project takeover · refactoring

Technical interviews

You hire. We ask the hard questions.

Screening · take-home review · panel interviews

Ways to work with us

Delivery

Whole project

Scope agreed up front. We design it, build it, ship it, hand it over.

Mobile · app end to end
Web · frontend and backend
Infra · deployment and CI

Outstaff

Dedicated engineers

Our engineers, your team, your board. Full-time or part-time. One month minimum.

Backend · PHP/Laravel, Python/FastAPI, Go
Frontend · React, Vue
Mobile · Flutter

Expertise

Interviews & consulting

Interviews for your hiring. Advice on the decisions you only make once.

Interviews · per candidate
Consulting · mobile, backend, infra
Audit · fixed scope

Hourly or monthly, agreed per engagement · invoiced in USD or EUR · payment within 14 days

How we work

Team: Five engineers. Mobile, backend, web, infrastructure
Availability: Remote, EU-friendly hours (GMT+4)
Engagement: A whole project, or engineers embedded in your team
Billing: Hourly or monthly, invoiced in USD or EUR from a registered Armenian sole proprietorship
Intellectual property: All work product assigned to the client on payment
Design: We work with your design, or bring in a designer
Contracts: MSA + SOW, NDA on request

Who you’d work with

Dmitrii Mozer
Founder · lead engineer, mobile
Flutter, Dart, Kotlin, Swift

Vlad Polovnikov
Founder · backend lead, infrastructure
PHP, Laravel, Go, Kubernetes

Sergey Volchkov
Frontend lead
React, Next.js, TypeScript, Python

Roza Sharkhmullina
Mobile engineer
Flutter, Dart

Denis Golikov
Frontend engineer
Vue 3, Nuxt, TypeScript

Current project

Closed early access

A streaming service for short films

Catalogue, player, creator pages. Every layer is ours: the frontend, the backend, the encoding pipeline, the infrastructure it runs on. See it at frawm.com.

Streams up to4K

per-title encoding ladder

ColourHDR

preserved end to end

CodecAV1

encoded with SVT-AV1

DeliveryHTTP/3

over a CDN

Our own player.

Nothing embedded. Playback, quality switching and the whole viewing surface are ours.

Encoding, built here.

FFmpeg and SVT-AV1 into an HLS ladder. Tuned for the way short films actually get watched.

Orchestrator and workers.

The workers do the video: analyse frames, process, stitch. The orchestrator runs them. Both ours.

Contact

hello@delys.tech

Send the scope and the deadline. You get an estimate back. Not a discovery call.